Masteries

Offense:
21

Defense:
5

Utility:
4

For this build Crit is everything. Even though its not extremely high AD, but considering how now you have 75% crit chance 300 AD = about 900 Damage when crit and with the high attack speed 75% crit chance will seem like 100% crit chance for whom ever is getting hit.

Since this is an AD Yi, it is highly suggested that Alpha is only used for chasing. I tend to like to use it as though its a flash.

Master Yi will tend to get killed alot if you have no idea what you are doing. The reason for this is because Master Yi is a VERY soft Champion, even more so with this build. For summoner skills even though I use Ghost and Exhaust (because I like to play aggressively, I care more about my Kills than my Deaths), I would suggest using Cleanse and Ghost.